After leaving the lights on for a few hours, the battery on the car went dead. On getting it sorted, the stereo was asking for the radio code. Having entered the code, the radio comes on but beeps every five seconds before switching off and asking for the code a few minutes later. Other than replacing, does anyone have any suggestions?

What year van do you have is it an early mk1? As divingdad says do a BSI reset you have confused the electrics. The radio is coded to the BSI so if it worked before the battery went flat it should work when powered up.

Sorry if I'm not explaining it too well, but the code is def correct and I'm putting it in correctly. The radio comes back on having entered the code but has the intermittent (three-second intervals) beeping thereafter before switching back off and requiring the code again after a few minutes.

This problem has only started since the battery ran flat, though a few weeks after getting the van I had to enter the code as the radio suddenly stopped working. I had to refer to the handbook instructions then to work out how to put the code in and it was fine for a couple of months until I stupidly left the headlights on during the heavy rain on Tuesday since which time the problem complained of has persisted.

I did try the BSI reset this afternoon, but now realise thanks to Brodfather11 that my van doesn't have the BSI and so that was in vain! Any suggestions on what is occurring?

I see you have the mk1 so no BSI unit just the old type code that you enter each time. I havnt had to enter a code for ages in a motor but are you positive you are entering it correctly and following the instructions to the letter.

Thanks Tomcat. Yes, as sure as I can be that I'm entering it correctly. The unit is off and requiring the code and then, when I put in the code, it comes back on but has the intermittent beeping mentioned. I enter the code and then press preset button 5 to enter/submit it. I'm a bit stumped to be fair and am on the verge of replacing the radio, but loath to do so unless necessary.